Grav-boots were part of the standard issue armament of terran marines in the StarCraft beta.
It is likely that they are equipment that is still retained in the StarCraft universe, terran units maintaining gravity generators for use on space platforms and zero-gravity environments.
- ↑ StarCraft Legacy. Note that "Alpha" is a typo. Accessed on 2007-12-06
- ↑ Neilson, Micky. StarCraft: Uprising. New York and Toronto, Ontario: Pocket Books, December 2000. ISBN 0-7434-1898-0 (eBook only).